On 12/9/20 4:52 AM, Jesper Dangaard Brouer wrote: > But I have redesigned the ndo_xdp_xmit call to take a bulk of packets > (up-to 16) so it should not be a problem to solve this by sharing > TX-queue and talking a lock per 16 packets. I still recommend that, > for fallback case, you allocated a number a TX-queue and distribute > this across CPUs to avoid hitting a congested lock (above measurements > are the optimal non-congested atomic lock operation)
I have been meaning to ask you why 16 for the XDP batching? If the netdev budget is 64, why not something higher like 32 or 64?
